Pericarditis is inflammation of the pericardium, the sac that surrounds the heart. It may be caused by an infection, or appear without apparent cause or after a general infection like pneumonia, tuberculosis. All symptoms are cardio-circulatory, from dyspnoea heart failure to oppression or symptoms of decompensation. It clinically manifests with choking and intense stabbing chest pain. In many cases, it is a benign condition and the symptoms presented by the patient can be treated, but in exceptional cases, surgical treatment may be necessary. Pericarditis can have very similar symptoms as a cardiomyopathy but it is important to differentiate them since the treatment is completely different.